Houston Mayor Bill White today called upon the federal government to develop a better system to identify, track and deport illegal immigrants who commit serious crimes after a Houston police officer was shot last week by an illegal immigrant. The federal government’s two main databases available to law enforcement agencies to screen criminals is ``inconsistent and incomplete” and more resources need to be devoted to improve it, White said. Wilfido Joel Alfaro, who police say shot Officer Richard Salter during a drug raid, is an El Salvadoran citizen with a history of drug arrests, authorities said. Alfaro had been arrested...